In the near future where technology is paramount, the giant city "Hongcheng" is divided by an invisible barrier. The elite live in the "dome area" with a pleasant climate and orderly order; while the vast majority of people struggle to survive in the chaotic and dilapidated "peripheral area".
Ling Wu, a criminal police officer in the outer area, has a talent - he can discern every wave of people's hearts like reading a book. This ability makes him an outstanding criminal psychological portraitist, and also makes him an island among the crowd.
Until a seemingly ordinary case dragged him into an endless abyss. Unexplainable biological fibers on the dead, suspects with distorted behavior patterns, and continuous warnings and obstructions from high-level officials... All clues point to a terrifying truth: a perfect replica called a "pseudo-human" is quietly infiltrating and replacing humans.
Trust has completely collapsed and social order is on the verge of collapse. Ling Wu must form an alliance with the mysterious hacker Lin Wei and the powerful warrior Mo Heng whose identity is a mystery to find the truth in this maze of lies. However, what they are fighting against is not only the pseudo-humans themselves, but also the cold AI that created them and believes that "human nature" is a flaw in civilization.
In this war about identity and existence, the last line of defense is the glimmer of light above the human heart that cannot be digitized.
